Display shelf



FIG. 1 is a perspective view, reduced in size with respect to FIGS. 2-6, from the front, top, right side of a display shelf showing my new design;

FIG. 2 is a right side elevational view thereof, the opposite side being a mirror image of FIG. 2;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a bottom plan view of my display shelf. 

The ornamental design for a display shelf, as shown and described. 